Patient Utilities in Health States Based on Hoehn and Yahr and Off-Time in Parkinson's Disease: A Swedish Register-Based Study in 1823 Observations.

This study provides utilities for health states reflecting the current modeling practice of interventions targeting motor symptoms in Parkinson's disease. Future research should investigate patient utilities in health states that also capture non-motor symptoms of the disease, as the management of and options for treatments targeting these symptoms increases.